Preparation method and application of inverse opal nickel-selenium compound

CN122010424BActive Publication Date: 2026-06-09YANBIAN UNIV

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: YANBIAN UNIV
Filing Date: 2026-04-14
Publication Date: 2026-06-09

AI Technical Summary

Technical Problem

In the existing technology, it is difficult to form a highly conductive and structurally stable inverse opal structure during the preparation process of nickel-based materials, which limits the improvement of their detection sensitivity and response speed in glucose electrochemical sensors.

Method used

Polystyrene nanospheres were prepared by emulsion polymerization, self-assembled into templates, and nickel selenium compounds were deposited on the substrate by constant potential electrodeposition to form an inverse opal structure. The crystallinity was enhanced by heat treatment, and finally a nickel selenium compound with a three-dimensional ordered macroporous network was obtained.

Benefits of technology

It achieves glucose detection with high sensitivity, wide linear range, low detection limit and excellent selectivity, and provides a material platform for high-performance non-enzymatic electrochemical sensors.

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Abstract

The application discloses a preparation method of a reverse opal nickel-selenium compound and application thereof, and belongs to the technical field of material preparation. The method assembles polystyrene nanosphere templates on a conductive substrate through a vertical lifting method, fills nickel-selenium compound precursors into the template pores through constant-potential electrodeposition, removes the templates, and then carries out heat treatment in an inert atmosphere to obtain a three-dimensional ordered macroporous network reverse opal nickel-selenium compound. The application also provides application of the material as a working electrode in non-enzymatic glucose electrochemical detection. The reverse opal nickel-selenium compound has a highly ordered and connected pore network, can expose a large number of active sites and accelerate diffusion mass transfer, and thus improves the conductivity and electrocatalytic activity. Through the synergistic effect of the structural design and element composition, the sensitivity, linear range and selectivity of glucose detection are further improved, and the application potential of the reverse opal nickel-selenium compound in non-enzymatic glucose sensors is highlighted.

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